<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1">
    <meta http-equiv="content-type" content="text/html; charset=utf-8">
    <meta charset="UTF-8">
    <meta name="author" content="Ambit Tsai <ambit_tsai@qq.com>">
    <title>RLO</title>
</head>
<body>
    <input id="front" type="text">
    <input id="back" type="text">
    <button onclick="copy()">复制</button>
    
    
    <input id="temp" type="text" readonly style="position: fixed;top: auto;bottom: 8px;">


    <script type="text/javascript">
        function copy() {
            var temp = document.getElementById('temp');
            temp.value = document.getElementById('front').value 
                + String.fromCharCode(8238) 
                + document.getElementById('back').value.split('').reverse().join('');
            
            temp.focus()
            document.execCommand('selectAll');
            document.execCommand('copy');
        }
    </script>
</body>
</html>